File:Pasteur Germ Proof Filter, c. 1890, Pasteur-Chamberland Filter Co., Dayton, Ohio - Museum of Science and Industry (Chicago) - DSC06633.JPG
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Size of this preview: 401 × 600 pixels. Other resolutions: 160 × 240 pixels | 321 × 480 pixels | 513 × 768 pixels | 685 × 1,024 pixels | 1,369 × 2,048 pixels | 3,487 × 5,214 pixels.
Original file (3,487 × 5,214 pixels, file size: 6.19 MB, MIME type: image/jpeg)